铝合金熔焊微气孔的三维同步辐射X射线成像*

喻程, 吴圣川, 胡雅楠, 张卫华, 付亚楠

THREE-DIMENSIONAL IMAGING OF GAS PORES IN FUSION WELDED Al ALLOYS BY SYNCHROTRON RADIATION X-RAY MICROTOMOGRAPHY

YU Cheng, WU Shengchuan, HU Yanan, ZHANG Weihua, FU Yanan

表2 样品内气孔特征统计

Table 2 Statistical analysis of gas pores for all samples

Sample No. Number of pore Volume fraction % Max. eff. diameter μm Mean volume mm3 Mean sphericity Max. area fraction % B1 5422 0.46 81.76 1449.6 0.6383 3.03 B2 3007 0.25 86.58 1304.6 0.6455 1.01 T1 1318 0.32 118.89 6117.9 0.6758 2.35 T2 2391 0.22 111.69 4574.5 0.6619 1.76